libgo/mksysinfo.sh

   1 #!/bin/sh
   2
   3 # Copyright 2009 The Go Authors. All rights reserved.
   4 # Use of this source code is governed by a BSD-style
   5 # license that can be found in the LICENSE file.
   6
   7 # Create sysinfo.go.
   8
   9 # This shell script creates the sysinfo.go file which holds types and
  10 # constants extracted from the system header files.  This relies on a
  11 # hook in gcc: the -fdump-go-spec option will generate debugging
  12 # information in Go syntax.
  13
  14 # We currently #include all the files at once, which works, but leads
  15 # to exposing some names which ideally should not be exposed, as they
  16 # match grep patterns.  E.g., WCHAR_MIN gets exposed because it starts
  17 # with W, like the wait flags.
  18
  19 CC=${CC:-gcc}
  20 OUT=tmp-sysinfo.go
  21
  22 set -e
  23
  24 rm -f sysinfo.c
  25 cat > sysinfo.c <<EOF
  26 #include "config.h"
  27
  28 #include <sys/types.h>
  29 #include <dirent.h>
  30 #include <errno.h>
  31 #include <fcntl.h>
  32 #include <netinet/in.h>
  33 /* <netinet/tcp.h> needs u_char/u_short, but <sys/bsd_types> is only
  34    included by <netinet/in.h> if _SGIAPI (i.e. _SGI_SOURCE
  35    && !_XOPEN_SOURCE.
  36    <sys/termios.h> only defines TIOCNOTTY if !_XOPEN_SOURCE, while
  37    <sys/ttold.h> does so unconditionally.  */
  38 #ifdef __sgi__
  39 #include <sys/bsd_types.h>
  40 #include <sys/ttold.h>
  41 #endif
  42 #include <netinet/tcp.h>
  43 #if defined(HAVE_NETINET_IN_SYSTM_H)
  44 #include <netinet/in_systm.h>
  45 #endif
  46 #if defined(HAVE_NETINET_IP_H)
  47 #include <netinet/ip.h>
  48 #endif
  49 #if defined(HAVE_NETINET_IP_MROUTE_H)
  50 #include <netinet/ip_mroute.h>
  51 #endif
  52 #if defined(HAVE_NETINET_IF_ETHER_H)
  53 #include <netinet/if_ether.h>
  54 #endif
  55 #include <signal.h>
  56 #include <sys/ioctl.h>
  57 #include <termios.h>
  58 #if defined(HAVE_SYSCALL_H)
  59 #include <syscall.h>
  60 #endif
  61 #if defined(HAVE_SYS_SYSCALL_H)
  62 #include <sys/syscall.h>
  63 #endif
  64 #if defined(HAVE_SYS_EPOLL_H)
  65 #include <sys/epoll.h>
  66 #endif
  67 #if defined(HAVE_SYS_FILE_H)
  68 #include <sys/file.h>
  69 #endif
  70 #if defined(HAVE_SYS_MMAN_H)
  71 #include <sys/mman.h>
  72 #endif
  73 #if defined(HAVE_SYS_PRCTL_H)
  74 #include <sys/prctl.h>
  75 #endif
  76 #if defined(HAVE_SYS_PTRACE_H)
  77 #include <sys/ptrace.h>
  78 #endif
  79 #include <sys/resource.h>
  80 #include <sys/uio.h>
  81 #include <sys/socket.h>
  82 #include <sys/stat.h>
  83 #include <sys/time.h>
  84 #include <sys/times.h>
  85 #include <sys/wait.h>
  86 #include <sys/un.h>
  87 #if defined(HAVE_SYS_USER_H)
  88 #include <sys/user.h>
  89 #endif
  90 #if defined(HAVE_SYS_UTSNAME_H)
  91 #include <sys/utsname.h>
  92 #endif
  93 #if defined(HAVE_SYS_SELECT_H)
  94 #include <sys/select.h>
  95 #endif
  96 #include <time.h>
  97 #include <unistd.h>
  98 #include <netdb.h>
  99 #include <pwd.h>
 100 #if defined(HAVE_LINUX_FILTER_H)
 101 #include <linux/filter.h>
 102 #endif
 103 #if defined(HAVE_LINUX_IF_ADDR_H)
 104 #include <linux/if_addr.h>
 105 #endif
 106 #if defined(HAVE_LINUX_IF_ETHER_H)
 107 #include <linux/if_ether.h>
 108 #endif
 109 #if defined(HAVE_LINUX_IF_TUN_H)
 110 #include <linux/if_tun.h>
 111 #endif
 112 #if defined(HAVE_LINUX_NETLINK_H)
 113 #include <linux/netlink.h>
 114 #endif
 115 #if defined(HAVE_LINUX_RTNETLINK_H)
 116 #include <linux/rtnetlink.h>
 117 #endif
 118 #if defined(HAVE_NET_IF_H)
 119 #include <net/if.h>
 120 #endif
 121 #if defined(HAVE_NET_IF_ARP_H)
 122 #include <net/if_arp.h>
 123 #endif
 124 #if defined(HAVE_NET_ROUTE_H)
 125 #include <net/route.h>
 126 #endif
 127 #if defined (HAVE_NETPACKET_PACKET_H)
 128 #include <netpacket/packet.h>
 129 #endif
 130 #if defined(HAVE_SYS_MOUNT_H)
 131 #include <sys/mount.h>
 132 #endif
 133 #if defined(HAVE_SYS_VFS_H)
 134 #include <sys/vfs.h>
 135 #endif
 136 #if defined(HAVE_STATFS_H)
 137 #include <sys/statfs.h>
 138 #endif
 139 #if defined(HAVE_SYS_TIMEX_H)
 140 #include <sys/timex.h>
 141 #endif
 142 #if defined(HAVE_SYS_SYSINFO_H)
 143 #include <sys/sysinfo.h>
 144 #endif
 145 #if defined(HAVE_USTAT_H)
 146 #include <ustat.h>
 147 #endif
 148 #if defined(HAVE_UTIME_H)
 149 #include <utime.h>
 150 #endif
 151 #if defined(HAVE_LINUX_ETHER_H)
 152 #include <linux/ether.h>
 153 #endif
 154 #if defined(HAVE_LINUX_FS_H)
 155 #include <linux/fs.h>
 156 #endif
 157 #if defined(HAVE_LINUX_REBOOT_H)
 158 #include <linux/reboot.h>
 159 #endif
 160 #if defined(HAVE_SYS_INOTIFY_H)
 161 #include <sys/inotify.h>
 162 #endif
 163 #if defined(HAVE_NETINET_ICMP6_H)
 164 #include <netinet/icmp6.h>
 165 #endif
 166
 167 /* Constants that may only be defined as expressions on some systems,
 168    expressions too complex for -fdump-go-spec to handle.  These are
 169    handled specially below.  */
 170 enum {
 171 #ifdef TIOCGWINSZ
 172   TIOCGWINSZ_val = TIOCGWINSZ,
 173 #endif
 174 #ifdef TIOCNOTTY
 175   TIOCNOTTY_val = TIOCNOTTY,
 176 #endif
 177 #ifdef TIOCSCTTY
 178   TIOCSCTTY_val = TIOCSCTTY,
 179 #endif
 180 };
 181 EOF
 182
 183 ${CC} -fdump-go-spec=gen-sysinfo.go -std=gnu99 -S -o sysinfo.s sysinfo.c
 184
 185 echo 'package syscall' > ${OUT}
 186 echo 'import "unsafe"' >> ${OUT}
 187 echo 'type _ unsafe.Pointer' >> ${OUT}
 188
 189 # Get all the consts and types, skipping ones which could not be
 190 # represented in Go and ones which we need to rewrite.  We also skip
 191 # function declarations, as we don't need them here.  All the symbols
 192 # will all have a leading underscore.
 193 grep -v '^// ' gen-sysinfo.go | \
 194   grep -v '^func' | \
 195   grep -v '^type _timeval ' | \
 196   grep -v '^type _timespec_t ' | \
 197   grep -v '^type _timespec ' | \
 198   grep -v '^type _timestruc_t ' | \
 199   grep -v '^type _epoll_' | \
 200   grep -v 'in6_addr' | \
 201   grep -v 'sockaddr_in6' | \
 202   sed -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
 203       -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 204       -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 205       -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
 206     >> ${OUT}
 207
 208 # The errno constants.  These get type Errno.
 209 echo '#include <errno.h>' | ${CC} -x c - -E -dM | \
 210   egrep '#define E[A-Z0-9_]+ ' | \
 211   sed -e 's/^#define \(E[A-Z0-9_]*\) .*$/const \1 = Errno(_\1)/' >> ${OUT}
 212
 213 # The O_xxx flags.
 214 egrep '^const _(O|F|FD)_' gen-sysinfo.go | \
 215   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 216 if ! grep '^const O_ASYNC' ${OUT} >/dev/null 2>&1; then
 217   echo "const O_ASYNC = 0" >> ${OUT}
 218 fi
 219 if ! grep '^const O_CLOEXEC' ${OUT} >/dev/null 2>&1; then
 220   echo "const O_CLOEXEC = 0" >> ${OUT}
 221 fi
 222
 223 # These flags can be lost on i386 GNU/Linux when using
 224 # -D_FILE_OFFSET_BITS=64, because we see "#define F_SETLK F_SETLK64"
 225 # before we see the definition of F_SETLK64.
 226 for flag in F_GETLK F_SETLK F_SETLKW; do
 227   if ! grep "^const ${flag} " ${OUT} >/dev/null 2>&1 \
 228       && grep "^const ${flag}64 " ${OUT} >/dev/null 2>&1; then
 229     echo "const ${flag} = ${flag}64" >> ${OUT}
 230   fi
 231 done
 232
 233 # The signal numbers.
 234 grep '^const _SIG[^_]' gen-sysinfo.go | \
 235   grep -v '^const _SIGEV_' | \
 236   sed -e 's/^\(const \)_\(SIG[^= ]*\)\(.*\)$/\1\2 = Signal(_\2)/' >> ${OUT}
 237 if ! grep '^const SIGPOLL ' ${OUT} >/dev/null 2>&1; then
 238   if grep '^const SIGIO ' ${OUT} > /dev/null 2>&1; then
 239     echo "const SIGPOLL = SIGIO" >> ${OUT}
 240   fi
 241 fi
 242 if ! grep '^const SIGCLD ' ${OUT} >/dev/null 2>&1; then
 243   if grep '^const SIGCHLD ' ${OUT} >/dev/null 2>&1; then
 244     echo "const SIGCLD = SIGCHLD" >> ${OUT}
 245   fi
 246 fi
 247
 248 # The syscall numbers.  We force the names to upper case.
 249 grep '^const _SYS_' gen-sysinfo.go | \
 250   sed -e 's/const _\(SYS_[^= ]*\).*$/\1/' | \
 251   while read sys; do
 252     sup=`echo $sys | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 253     echo "const $sup = _$sys" >> ${OUT}
 254   done
 255
 256 # The GNU/Linux support wants to use SYS_GETDENTS64 if available.
 257 if ! grep '^const SYS_GETDENTS ' ${OUT} >/dev/null 2>&1; then
 258   echo "const SYS_GETDENTS = 0" >> ${OUT}
 259 fi
 260 if ! grep '^const SYS_GETDENTS64 ' ${OUT} >/dev/null 2>&1; then
 261   echo "const SYS_GETDENTS64 = 0" >> ${OUT}
 262 fi
 263
 264 # Stat constants.
 265 grep '^const _S_' gen-sysinfo.go | \
 266   sed -e 's/^\(const \)_\(S_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 267
 268 # Mmap constants.
 269 grep '^const _PROT_' gen-sysinfo.go | \
 270   sed -e 's/^\(const \)_\(PROT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 271 grep '^const _MAP_' gen-sysinfo.go | \
 272   sed -e 's/^\(const \)_\(MAP_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 273 grep '^const _MADV_' gen-sysinfo.go | \
 274   sed -e 's/^\(const \)_\(MADV_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 275 grep '^const _MCL_' gen-sysinfo.go | \
 276   sed -e 's/^\(const \)_\(MCL_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 277
 278 # Process status constants.
 279 grep '^const _W' gen-sysinfo.go |
 280   sed -e 's/^\(const \)_\(W[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 281 # WSTOPPED was introduced in glibc 2.3.4.
 282 if ! grep '^const _WSTOPPED = ' gen-sysinfo.go >/dev/null 2>&1; then
 283   if grep '^const _WUNTRACED = ' gen-sysinfo.go > /dev/null 2>&1; then
 284     echo 'const WSTOPPED = _WUNTRACED' >> ${OUT}
 285   else
 286     echo 'const WSTOPPED = 2' >> ${OUT}
 287   fi
 288 fi
 289 if grep '^const ___WALL = ' gen-sysinfo.go >/dev/null 2>&1 \
 290    && ! grep '^const _WALL = ' gen-sysinfo.go >/dev/null 2>&1; then
 291   echo 'const WALL = ___WALL' >> ${OUT}
 292 fi
 293
 294 # Networking constants.
 295 egrep '^const _(AF|ARPHRD|ETH|IN|SOCK|SOL|SO|IPPROTO|TCP|IP|IPV6)_' gen-sysinfo.go |
 296   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 297 grep '^const _SOMAXCONN' gen-sysinfo.go |
 298   sed -e 's/^\(const \)_\(SOMAXCONN[^= ]*\)\(.*\)$/\1\2 = _\2/' \
 299     >> ${OUT}
 300 grep '^const _SHUT_' gen-sysinfo.go |
 301   sed -e 's/^\(const \)_\(SHUT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 302
 303 # The net package requires some const definitions.
 304 for m in IP_PKTINFO IPV6_V6ONLY IPPROTO_IPV6 IPV6_JOIN_GROUP IPV6_LEAVE_GROUP IPV6_TCLASS SO_REUSEPORT; do
 305   if ! grep "^const $m " ${OUT} >/dev/null 2>&1; then
 306     echo "const $m = 0" >> ${OUT}
 307   fi
 308 done
 309 for m in SOCK_CLOEXEC SOCK_NONBLOCK; do
 310   if ! grep "^const $m " ${OUT} >/dev/null 2>&1; then
 311     echo "const $m = -1" >> ${OUT}
 312   fi
 313 done
 314
 315 # The syscall package requires AF_LOCAL.
 316 if ! grep '^const AF_LOCAL ' ${OUT} >/dev/null 2>&1; then
 317   if grep '^const AF_UNIX ' ${OUT} >/dev/null 2>&1; then
 318     echo "const AF_LOCAL = AF_UNIX" >> ${OUT}
 319   fi
 320 fi
 321
 322 # pathconf constants.
 323 grep '^const __PC' gen-sysinfo.go |
 324   sed -e 's/^\(const \)__\(PC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
 325
 326 # The PATH_MAX constant.
 327 if grep '^const _PATH_MAX ' gen-sysinfo.go >/dev/null 2>&1; then
 328   echo 'const PathMax = _PATH_MAX' >> ${OUT}
 329 fi
 330
 331 # epoll constants.
 332 grep '^const _EPOLL' gen-sysinfo.go |
 333   sed -e 's/^\(const \)_\(EPOLL[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 334 # Make sure EPOLLRDHUP and EPOLL_CLOEXEC are defined.
 335 if ! grep '^const EPOLLRDHUP' ${OUT} >/dev/null 2>&1; then
 336   echo "const EPOLLRDHUP = 0x2000" >> ${OUT}
 337 fi
 338 if ! grep '^const EPOLL_CLOEXEC' ${OUT} >/dev/null 2>&1; then
 339   echo "const EPOLL_CLOEXEC = 02000000" >> ${OUT}
 340 fi
 341
 342 # Prctl constants.
 343 grep '^const _PR_' gen-sysinfo.go |
 344   sed -e 's/^\(const \)_\(PR_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 345
 346 # Ptrace constants.
 347 grep '^const _PTRACE' gen-sysinfo.go |
 348   sed -e 's/^\(const \)_\(PTRACE[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 349 # We need some ptrace options that are not defined in older versions
 350 # of glibc.
 351 if ! grep '^const PTRACE_SETOPTIONS' ${OUT} > /dev/null 2>&1; then
 352   echo "const PTRACE_SETOPTIONS = 0x4200" >> ${OUT}
 353 fi
 354 if ! grep '^const PTRACE_O_TRACESYSGOOD' ${OUT} > /dev/null 2>&1; then
 355   echo "const PTRACE_O_TRACESYSGOOD = 0x1" >> ${OUT}
 356 fi
 357 if ! grep '^const PTRACE_O_TRACEFORK' ${OUT} > /dev/null 2>&1; then
 358   echo "const PTRACE_O_TRACEFORK = 0x2" >> ${OUT}
 359 fi
 360 if ! grep '^const PTRACE_O_TRACEVFORK' ${OUT} > /dev/null 2>&1; then
 361   echo "const PTRACE_O_TRACEVFORK = 0x4" >> ${OUT}
 362 fi
 363 if ! grep '^const PTRACE_O_TRACECLONE' ${OUT} > /dev/null 2>&1; then
 364   echo "const PTRACE_O_TRACECLONE = 0x8" >> ${OUT}
 365 fi
 366 if ! grep '^const PTRACE_O_TRACEEXEC' ${OUT} > /dev/null 2>&1; then
 367   echo "const PTRACE_O_TRACEEXEC = 0x10" >> ${OUT}
 368 fi
 369 if ! grep '^const PTRACE_O_TRACEVFORKDONE' ${OUT} > /dev/null 2>&1; then
 370   echo "const PTRACE_O_TRACEVFORKDONE = 0x20" >> ${OUT}
 371 fi
 372 if ! grep '^const PTRACE_O_TRACEEXIT' ${OUT} > /dev/null 2>&1; then
 373   echo "const PTRACE_O_TRACEEXIT = 0x40" >> ${OUT}
 374 fi
 375 if ! grep '^const PTRACE_O_MASK' ${OUT} > /dev/null 2>&1; then
 376   echo "const PTRACE_O_MASK = 0x7f" >> ${OUT}
 377 fi
 378 if ! grep '^const _PTRACE_GETEVENTMSG' ${OUT} > /dev/null 2>&1; then
 379   echo "const PTRACE_GETEVENTMSG = 0x4201" >> ${OUT}
 380 fi
 381 if ! grep '^const PTRACE_EVENT_FORK' ${OUT} > /dev/null 2>&1; then
 382   echo "const PTRACE_EVENT_FORK = 1" >> ${OUT}
 383 fi
 384 if ! grep '^const PTRACE_EVENT_VFORK' ${OUT} > /dev/null 2>&1; then
 385   echo "const PTRACE_EVENT_VFORK = 2" >> ${OUT}
 386 fi
 387 if ! grep '^const PTRACE_EVENT_CLONE' ${OUT} > /dev/null 2>&1; then
 388   echo "const PTRACE_EVENT_CLONE = 3" >> ${OUT}
 389 fi
 390 if ! grep '^const PTRACE_EVENT_EXEC' ${OUT} > /dev/null 2>&1; then
 391   echo "const PTRACE_EVENT_EXEC = 4" >> ${OUT}
 392 fi
 393 if ! grep '^const PTRACE_EVENT_VFORK_DONE' ${OUT} > /dev/null 2>&1; then
 394   echo "const PTRACE_EVENT_VFORK_DONE = 5" >> ${OUT}
 395 fi
 396 if ! grep '^const PTRACE_EVENT_EXIT' ${OUT} > /dev/null 2>&1; then
 397   echo "const PTRACE_EVENT_EXIT = 6" >> ${OUT}
 398 fi
 399 if ! grep '^const _PTRACE_TRACEME' ${OUT} > /dev/null 2>&1; then
 400   echo "const _PTRACE_TRACEME = 0" >> ${OUT}
 401 fi
 402
 403 # The registers returned by PTRACE_GETREGS.  This is probably
 404 # GNU/Linux specific; it should do no harm if there is no
 405 # _user_regs_struct.
 406 regs=`grep '^type _user_regs_struct struct' gen-sysinfo.go || true`
 407 if test "$regs" != ""; then
 408   regs=`echo $regs | sed -e 's/type _user_regs_struct struct //' -e 's/[{}]//g'`
 409   regs=`echo $regs | sed -e s'/^ *//'`
 410   nregs=
 411   while test -n "$regs"; do
 412     field=`echo $regs | sed -e 's/^\([^;]*\);.*$/\1/'`
 413     regs=`echo $regs | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 414     # Capitalize the first character of the field.
 415     f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 416     r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 417     f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 418     field="$f$r"
 419     nregs="$nregs $field;"
 420   done
 421   echo "type PtraceRegs struct {$nregs }" >> ${OUT}
 422 fi
 423
 424 # Some basic types.
 425 echo 'type Size_t _size_t' >> ${OUT}
 426 echo "type Ssize_t _ssize_t" >> ${OUT}
 427 if grep '^const _HAVE_OFF64_T = ' gen-sysinfo.go > /dev/null 2>&1; then
 428   echo "type Offset_t _off64_t" >> ${OUT}
 429 else
 430   echo "type Offset_t _off_t" >> ${OUT}
 431 fi
 432 echo "type Mode_t _mode_t" >> ${OUT}
 433 echo "type Pid_t _pid_t" >> ${OUT}
 434 echo "type Uid_t _uid_t" >> ${OUT}
 435 echo "type Gid_t _gid_t" >> ${OUT}
 436 echo "type Socklen_t _socklen_t" >> ${OUT}
 437
 438 # The C int type.
 439 sizeof_int=`grep '^const ___SIZEOF_INT__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
 440 if test "$sizeof_int" = "4"; then
 441   echo "type _C_int int32" >> ${OUT}
 442   echo "type _C_uint uint32" >> ${OUT}
 443 elif test "$sizeof_int" = "8"; then
 444   echo "type _C_int int64" >> ${OUT}
 445   echo "type _C_uint uint64" >> ${OUT}
 446 else
 447   echo 1>&2 "mksysinfo.sh: could not determine size of int (got $sizeof_int)"
 448   exit 1
 449 fi
 450
 451 # The C long type, needed because that is the type that ptrace returns.
 452 sizeof_long=`grep '^const ___SIZEOF_LONG__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
 453 if test "$sizeof_long" = "4"; then
 454   echo "type _C_long int32" >> ${OUT}
 455 elif test "$sizeof_long" = "8"; then
 456   echo "type _C_long int64" >> ${OUT}
 457 else
 458   echo 1>&2 "mksysinfo.sh: could not determine size of long (got $sizeof_long)"
 459   exit 1
 460 fi
 461
 462 # Solaris 2 needs _u?pad128_t, but its default definition in terms of long
 463 # double is commented by -fdump-go-spec.
 464 if grep "^// type _pad128_t" gen-sysinfo.go > /dev/null 2>&1; then
 465   echo "type _pad128_t struct { _l [4]int32; }" >> ${OUT}
 466 fi
 467 if grep "^// type _upad128_t" gen-sysinfo.go > /dev/null 2>&1; then
 468   echo "type _upad128_t struct { _l [4]uint32; }" >> ${OUT}
 469 fi
 470
 471 # The time_t type.
 472 if grep '^type _time_t ' gen-sysinfo.go > /dev/null 2>&1; then
 473   echo 'type Time_t _time_t' >> ${OUT}
 474 fi
 475
 476 # The time structures need special handling: we need to name the
 477 # types, so that we can cast integers to the right types when
 478 # assigning to the structures.
 479 timeval=`grep '^type _timeval ' gen-sysinfo.go`
 480 timeval_sec=`echo $timeval | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 481 timeval_usec=`echo $timeval | sed -n -e 's/^.*tv_usec \([^ ]*\);.*$/\1/p'`
 482 echo "type Timeval_sec_t $timeval_sec" >> ${OUT}
 483 echo "type Timeval_usec_t $timeval_usec" >> ${OUT}
 484 echo $timeval | \
 485   sed -e 's/type _timeval /type Timeval /' \
 486       -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timeval_sec_t/' \
 487       -e 's/tv_usec *[a-zA-Z0-9_]*/Usec Timeval_usec_t/' >> ${OUT}
 488 timespec=`grep '^type _timespec ' gen-sysinfo.go || true`
 489 if test "$timespec" = ""; then
 490   # IRIX 6.5 has __timespec instead.
 491   timespec=`grep '^type ___timespec ' gen-sysinfo.go || true`
 492 fi
 493 timespec_sec=`echo $timespec | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 494 timespec_nsec=`echo $timespec | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
 495 echo "type Timespec_sec_t $timespec_sec" >> ${OUT}
 496 echo "type Timespec_nsec_t $timespec_nsec" >> ${OUT}
 497 echo $timespec | \
 498   sed -e 's/^type ___timespec /type Timespec /' \
 499       -e 's/^type _timespec /type Timespec /' \
 500       -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timespec_sec_t/' \
 501       -e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timespec_nsec_t/' >> ${OUT}
 502
 503 timestruc=`grep '^type _timestruc_t ' gen-sysinfo.go || true`
 504 if test "$timestruc" != ""; then
 505   timestruc_sec=`echo $timestruc | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 506   timestruc_nsec=`echo $timestruc | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
 507   echo "type Timestruc_sec_t $timestruc_sec" >> ${OUT}
 508   echo "type Timestruc_nsec_t $timestruc_nsec" >> ${OUT}
 509   echo $timestruc | \
 510     sed -e 's/^type _timestruc_t /type Timestruc /' \
 511         -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timestruc_sec_t/' \
 512         -e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timestruc_nsec_t/' >> ${OUT}
 513 fi
 514
 515 # The tms struct.
 516 grep '^type _tms ' gen-sysinfo.go | \
 517     sed -e 's/type _tms/type Tms/' \
 518       -e 's/tms_utime/Utime/' \
 519       -e 's/tms_stime/Stime/' \
 520       -e 's/tms_cutime/Cutime/' \
 521       -e 's/tms_cstime/Cstime/' \
 522     >> ${OUT}
 523
 524 # The stat type.
 525 # Prefer largefile variant if available.
 526 stat=`grep '^type _stat64 ' gen-sysinfo.go || true`
 527 if test "$stat" != ""; then
 528   grep '^type _stat64 ' gen-sysinfo.go
 529 else
 530   grep '^type _stat ' gen-sysinfo.go
 531 fi | sed -e 's/type _stat64/type Stat_t/' \
 532          -e 's/type _stat/type Stat_t/' \
 533          -e 's/st_dev/Dev/' \
 534          -e 's/st_ino/Ino/g' \
 535          -e 's/st_nlink/Nlink/' \
 536          -e 's/st_mode/Mode/' \
 537          -e 's/st_uid/Uid/' \
 538          -e 's/st_gid/Gid/' \
 539          -e 's/st_rdev/Rdev/' \
 540          -e 's/st_size/Size/' \
 541          -e 's/st_blksize/Blksize/' \
 542          -e 's/st_blocks/Blocks/' \
 543          -e 's/st_atim/Atim/' \
 544          -e 's/st_mtim/Mtim/' \
 545          -e 's/st_ctim/Ctim/' \
 546          -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
 547          -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 548          -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 549          -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
 550          -e 's/Godump_[0-9] struct { \([^;]*;\) };/\1/g' \
 551        >> ${OUT}
 552
 553 # The directory searching types.
 554 # Prefer largefile variant if available.
 555 dirent=`grep '^type _dirent64 ' gen-sysinfo.go || true`
 556 if test "$dirent" != ""; then
 557   grep '^type _dirent64 ' gen-sysinfo.go
 558 else
 559   grep '^type _dirent ' gen-sysinfo.go
 560 fi | sed -e 's/type _dirent64/type Dirent/' \
 561          -e 's/type _dirent/type Dirent/' \
 562          -e 's/d_name \[0+1\]/d_name [0+256]/' \
 563          -e 's/d_name/Name/' \
 564          -e 's/]int8/]byte/' \
 565          -e 's/d_ino/Ino/' \
 566          -e 's/d_off/Off/' \
 567          -e 's/d_reclen/Reclen/' \
 568          -e 's/d_type/Type/' \
 569       >> ${OUT}
 570 echo "type DIR _DIR" >> ${OUT}
 571
 572 # Values for d_type field in dirent.
 573 grep '^const _DT_' gen-sysinfo.go |
 574   sed -e 's/^\(const \)_\(DT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 575
 576 # The rusage struct.
 577 rusage=`grep '^type _rusage struct' gen-sysinfo.go`
 578 if test "$rusage" != ""; then
 579   # Remove anonymous unions from GNU/Linux <bits/resource.h>.
 580   rusage=`echo $rusage | sed -e 's/Godump_[0-9]* struct {\([^}]*\)};/\1/g'`
 581   rusage=`echo $rusage | sed -e 's/type _rusage struct //' -e 's/[{}]//g'`
 582   rusage=`echo $rusage | sed -e 's/^ *//'`
 583   nrusage=
 584   while test -n "$rusage"; do
 585     field=`echo $rusage | sed -e 's/^\([^;]*\);.*$/\1/'`
 586     rusage=`echo $rusage | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 587     # Drop the leading ru_, capitalize the next character.
 588     field=`echo $field | sed -e 's/^ru_//'`
 589     f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 590     r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 591     f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 592     # Fix _timeval _timespec, and _timestruc_t.
 593     r=`echo $r | sed -e s'/ _timeval$/ Timeval/'`
 594     r=`echo $r | sed -e s'/ _timespec$/ Timespec/'`
 595     r=`echo $r | sed -e s'/ _timestruc_t$/ Timestruc/'`
 596     field="$f$r"
 597     nrusage="$nrusage $field;"
 598   done
 599   echo "type Rusage struct {$nrusage }" >> ${OUT}
 600 else
 601   echo "type Rusage struct {}" >> ${OUT}
 602 fi
 603
 604 # The RUSAGE constants.
 605 grep '^const _RUSAGE_' gen-sysinfo.go | \
 606   sed -e 's/^\(const \)_\(RUSAGE_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 607
 608 # The utsname struct.
 609 grep '^type _utsname ' gen-sysinfo.go | \
 610     sed -e 's/_utsname/Utsname/' \
 611       -e 's/sysname/Sysname/' \
 612       -e 's/nodename/Nodename/' \
 613       -e 's/release/Release/' \
 614       -e 's/version/Version/' \
 615       -e 's/machine/Machine/' \
 616       -e 's/domainname/Domainname/' \
 617     >> ${OUT}
 618
 619 # The iovec struct.
 620 iovec=`grep '^type _iovec ' gen-sysinfo.go`
 621 iovec_len=`echo $iovec | sed -n -e 's/^.*iov_len \([^ ]*\);.*$/\1/p'`
 622 echo "type Iovec_len_t $iovec_len" >> ${OUT}
 623 echo $iovec | \
 624     sed -e 's/_iovec/Iovec/' \
 625       -e 's/iov_base/Base/' \
 626       -e 's/iov_len *[a-zA-Z0-9_]*/Len Iovec_len_t/' \
 627     >> ${OUT}
 628
 629 # The msghdr struct.
 630 msghdr=`grep '^type _msghdr ' gen-sysinfo.go`
 631 msghdr_controllen=`echo $msghdr | sed -n -e 's/^.*msg_controllen \([^ ]*\);.*$/\1/p'`
 632 echo "type Msghdr_controllen_t $msghdr_controllen" >> ${OUT}
 633 echo $msghdr | \
 634     sed -e 's/_msghdr/Msghdr/' \
 635       -e 's/msg_name/Name/' \
 636       -e 's/msg_namelen/Namelen/' \
 637       -e 's/msg_iov/Iov/' \
 638       -e 's/msg_iovlen/Iovlen/' \
 639       -e 's/_iovec/Iovec/' \
 640       -e 's/msg_control/Control/' \
 641       -e 's/msg_controllen *[a-zA-Z0-9_]*/Controllen Msghdr_controllen_t/' \
 642       -e 's/msg_flags/Flags/' \
 643     >> ${OUT}
 644
 645 # The MSG_ flags for Msghdr.
 646 grep '^const _MSG_' gen-sysinfo.go | \
 647   sed -e 's/^\(const \)_\(MSG_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 648
 649 # The cmsghdr struct.
 650 cmsghdr=`grep '^type _cmsghdr ' gen-sysinfo.go`
 651 if test -n "$cmsghdr"; then
 652   cmsghdr_len=`echo $cmsghdr | sed -n -e 's/^.*cmsg_len \([^ ]*\);.*$/\1/p'`
 653   echo "type Cmsghdr_len_t $cmsghdr_len" >> ${OUT}
 654   echo "$cmsghdr" | \
 655       sed -e 's/_cmsghdr/Cmsghdr/' \
 656         -e 's/cmsg_len *[a-zA-Z0-9_]*/Len Cmsghdr_len_t/' \
 657         -e 's/cmsg_level/Level/' \
 658         -e 's/cmsg_type/Type/' \
 659         -e 's/\[\]/[0]/' \
 660       >> ${OUT}
 661 fi
 662
 663 # The SCM_ flags for Cmsghdr.
 664 grep '^const _SCM_' gen-sysinfo.go | \
 665   sed -e 's/^\(const \)_\(SCM_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 666
 667 # The ucred struct.
 668 grep '^type _ucred ' gen-sysinfo.go | \
 669     sed -e 's/_ucred/Ucred/' \
 670       -e 's/pid/Pid/' \
 671       -e 's/uid/Uid/' \
 672       -e 's/gid/Gid/' \
 673     >> ${OUT}
 674
 675 # The ip_mreq struct.
 676 grep '^type _ip_mreq ' gen-sysinfo.go | \
 677     sed -e 's/_ip_mreq/IPMreq/' \
 678       -e 's/imr_multiaddr/Multiaddr/' \
 679       -e 's/imr_interface/Interface/' \
 680       -e 's/_in_addr/[4]byte/g' \
 681     >> ${OUT}
 682
 683 # We need IPMreq to compile the net package.
 684 if ! grep 'type IPMreq ' ${OUT} >/dev/null 2>&1; then
 685   echo 'type IPMreq struct { Multiaddr [4]byte; Interface [4]byte; }' >> ${OUT}
 686 fi
 687
 688 # The ipv6_mreq struct.
 689 grep '^type _ipv6_mreq ' gen-sysinfo.go | \
 690     sed -e 's/_ipv6_mreq/IPv6Mreq/' \
 691       -e 's/ipv6mr_multiaddr/Multiaddr/' \
 692       -e 's/ipv6mr_interface/Interface/' \
 693       -e 's/_in6_addr/[16]byte/' \
 694     >> ${OUT}
 695
 696 # We need IPv6Mreq to compile the net package.
 697 if ! grep 'type IPv6Mreq ' ${OUT} >/dev/null 2>&1; then
 698   echo 'type IPv6Mreq struct { Multiaddr [16]byte; Interface uint32; }' >> ${OUT}
 699 fi
 700
 701 # The ip_mreqn struct.
 702 grep '^type _ip_mreqn ' gen-sysinfo.go | \
 703     sed -e 's/_ip_mreqn/IPMreqn/' \
 704       -e 's/imr_multiaddr/Multiaddr/' \
 705       -e 's/imr_address/Address/' \
 706       -e 's/imr_ifindex/Ifindex/' \
 707       -e 's/_in_addr/[4]byte/g' \
 708     >> ${OUT}
 709
 710 # We need IPMreq to compile the net package.
 711 if ! grep 'type IPMreqn ' ${OUT} >/dev/null 2>&1; then
 712   echo 'type IPMreqn struct { Multiaddr [4]byte; Interface [4]byte; Ifindex int32 }' >> ${OUT}
 713 fi
 714
 715 # The icmp6_filter struct.
 716 grep '^type _icmp6_filter ' gen-sysinfo.go | \
 717     sed -e 's/_icmp6_filter/ICMPv6Filter/' \
 718       -e 's/data/Data/' \
 719       -e 's/filt/Filt/' \
 720     >> ${OUT}
 721
 722 # We need ICMPv6Filter to compile the syscall package.
 723 if ! grep 'type ICMPv6Filter ' ${OUT} > /dev/null 2>&1; then
 724   echo 'type ICMPv6Filter struct { Data [8]uint32 }' >> ${OUT}
 725 fi
 726
 727 # Try to guess the type to use for fd_set.
 728 fd_set=`grep '^type _fd_set ' gen-sysinfo.go || true`
 729 fds_bits_type="_C_long"
 730 if test "$fd_set" != ""; then
 731     fds_bits_type=`echo $fd_set | sed -e 's/.*[]]\([^;]*\); }$/\1/'`
 732 fi
 733 echo "type fds_bits_type $fds_bits_type" >> ${OUT}
 734
 735 # The addrinfo struct.
 736 grep '^type _addrinfo ' gen-sysinfo.go | \
 737     sed -e 's/_addrinfo/Addrinfo/g' \
 738       -e 's/ ai_/ Ai_/g' \
 739     >> ${OUT}
 740
 741 # The addrinfo flags and errors.
 742 grep '^const _AI_' gen-sysinfo.go | \
 743   sed -e 's/^\(const \)_\(AI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 744 grep '^const _EAI_' gen-sysinfo.go | \
 745   sed -e 's/^\(const \)_\(EAI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 746
 747 # The passwd struct.
 748 grep '^type _passwd ' gen-sysinfo.go | \
 749     sed -e 's/_passwd/Passwd/' \
 750       -e 's/ pw_/ Pw_/g' \
 751     >> ${OUT}
 752
 753 # The ioctl flags for the controlling TTY.
 754 grep '^const _TIOC' gen-sysinfo.go | \
 755     grep -v '_val =' | \
 756     sed -e 's/^\(const \)_\(TIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 757 # We need TIOCGWINSZ.
 758 if ! grep '^const TIOCGWINSZ' ${OUT} >/dev/null 2>&1; then
 759   if grep '^const _TIOCGWINSZ_val' ${OUT} >/dev/null 2>&1; then
 760     echo 'const TIOCGWINSZ = _TIOCGWINSZ_val' >> ${OUT}
 761   fi
 762 fi
 763 if ! grep '^const TIOCNOTTY' ${OUT} >/dev/null 2>&1; then
 764   if grep '^const _TIOCNOTTY_val' ${OUT} >/dev/null 2>&1; then
 765     echo 'const TIOCNOTTY = _TIOCNOTTY_val' >> ${OUT}
 766   fi
 767 fi
 768 if ! grep '^const TIOCSCTTY' ${OUT} >/dev/null 2>&1; then
 769   if grep '^const _TIOCSCTTY_val' ${OUT} >/dev/null 2>&1; then
 770     echo 'const TIOCSCTTY = _TIOCSCTTY_val' >> ${OUT}
 771   fi
 772 fi
 773
 774 # The ioctl flags for terminal control
 775 grep '^const _TC[GS]ET' gen-sysinfo.go | \
 776     sed -e 's/^\(const \)_\(TC[GS]ET[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 777
 778 # ioctl constants.  Might fall back to 0 if TIOCNXCL is missing, too, but
 779 # needs handling in syscalls.exec.go.
 780 if ! grep '^const _TIOCSCTTY ' gen-sysinfo.go >/dev/null 2>&1; then
 781   if grep '^const _TIOCNXCL ' gen-sysinfo.go >/dev/null 2>&1; then
 782     echo "const TIOCSCTTY = TIOCNXCL" >> ${OUT}
 783   fi
 784 fi
 785
 786 # The nlmsghdr struct.
 787 grep '^type _nlmsghdr ' gen-sysinfo.go | \
 788     sed -e 's/_nlmsghdr/NlMsghdr/' \
 789       -e 's/nlmsg_len/Len/' \
 790       -e 's/nlmsg_type/Type/' \
 791       -e 's/nlmsg_flags/Flags/' \
 792       -e 's/nlmsg_seq/Seq/' \
 793       -e 's/nlmsg_pid/Pid/' \
 794     >> ${OUT}
 795
 796 # The nlmsg flags and operators.
 797 grep '^const _NLM' gen-sysinfo.go | \
 798     sed -e 's/^\(const \)_\(NLM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 799
 800 # NLMSG_HDRLEN is defined as an expression using sizeof.
 801 if ! grep '^const NLMSG_HDRLEN' ${OUT} > /dev/null 2>&1; then
 802   if grep '^const _sizeof_nlmsghdr ' ${OUT} > /dev/null 2>&1; then
 803     echo 'const NLMSG_HDRLEN = (_sizeof_nlmsghdr + (NLMSG_ALIGNTO-1)) &^ (NLMSG_ALIGNTO-1)' >> ${OUT}
 804   fi
 805 fi
 806
 807 # The rtmsg struct.
 808 grep '^type _rtmsg ' gen-sysinfo.go | \
 809     sed -e 's/_rtmsg/RtMsg/' \
 810       -e 's/rtm_family/Family/' \
 811       -e 's/rtm_dst_len/Dst_len/' \
 812       -e 's/rtm_src_len/Src_len/' \
 813       -e 's/rtm_tos/Tos/' \
 814       -e 's/rtm_table/Table/' \
 815       -e 's/rtm_protocol/Protocol/' \
 816       -e 's/rtm_scope/Scope/' \
 817       -e 's/rtm_type/Type/' \
 818       -e 's/rtm_flags/Flags/' \
 819     >> ${OUT}
 820
 821 # The rtgenmsg struct.
 822 grep '^type _rtgenmsg ' gen-sysinfo.go | \
 823     sed -e 's/_rtgenmsg/RtGenmsg/' \
 824       -e 's/rtgen_family/Family/' \
 825     >> ${OUT}
 826
 827 # The routing message flags.
 828 grep '^const _RT_' gen-sysinfo.go | \
 829     sed -e 's/^\(const \)_\(RT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 830 grep '^const _RTA' gen-sysinfo.go | \
 831     sed -e 's/^\(const \)_\(RTA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 832 grep '^const _RTF' gen-sysinfo.go | \
 833     sed -e 's/^\(const \)_\(RTF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 834 grep '^const _RTCF' gen-sysinfo.go | \
 835     sed -e 's/^\(const \)_\(RTCF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 836 grep '^const _RTM' gen-sysinfo.go | \
 837     sed -e 's/^\(const \)_\(RTM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 838 grep '^const _RTN' gen-sysinfo.go | \
 839     sed -e 's/^\(const \)_\(RTN[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 840 grep '^const _RTPROT' gen-sysinfo.go | \
 841     sed -e 's/^\(const \)_\(RTPROT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 842
 843 # The ifinfomsg struct.
 844 grep '^type _ifinfomsg ' gen-sysinfo.go | \
 845     sed -e 's/_ifinfomsg/IfInfomsg/' \
 846       -e 's/ifi_family/Family/' \
 847       -e 's/ifi_type/Type/' \
 848       -e 's/ifi_index/Index/' \
 849       -e 's/ifi_flags/Flags/' \
 850       -e 's/ifi_change/Change/' \
 851     >> ${OUT}
 852
 853 # The interface information types and flags.
 854 grep '^const _IFA' gen-sysinfo.go | \
 855     sed -e 's/^\(const \)_\(IFA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 856 grep '^const _IFLA' gen-sysinfo.go | \
 857     sed -e 's/^\(const \)_\(IFLA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 858 grep '^const _IFF' gen-sysinfo.go | \
 859     sed -e 's/^\(const \)_\(IFF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 860 grep '^const _IFNAMSIZ' gen-sysinfo.go | \
 861     sed -e 's/^\(const \)_\(IFNAMSIZ[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 862 grep '^const _SIOC' gen-sysinfo.go |
 863     sed -e 's/^\(const \)_\(SIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 864
 865 # The ifaddrmsg struct.
 866 grep '^type _ifaddrmsg ' gen-sysinfo.go | \
 867     sed -e 's/_ifaddrmsg/IfAddrmsg/' \
 868       -e 's/ifa_family/Family/' \
 869       -e 's/ifa_prefixlen/Prefixlen/' \
 870       -e 's/ifa_flags/Flags/' \
 871       -e 's/ifa_scope/Scope/' \
 872       -e 's/ifa_index/Index/' \
 873     >> ${OUT}
 874
 875 # The rtattr struct.
 876 grep '^type _rtattr ' gen-sysinfo.go | \
 877     sed -e 's/_rtattr/RtAttr/' \
 878       -e 's/rta_len/Len/' \
 879       -e 's/rta_type/Type/' \
 880     >> ${OUT}
 881
 882 # The in_pktinfo struct.
 883 grep '^type _in_pktinfo ' gen-sysinfo.go | \
 884     sed -e 's/_in_pktinfo/Inet4Pktinfo/' \
 885       -e 's/ipi_ifindex/Ifindex/' \
 886       -e 's/ipi_spec_dst/Spec_dst/' \
 887       -e 's/ipi_addr/Addr/' \
 888       -e 's/_in_addr/[4]byte/g' \
 889     >> ${OUT}
 890
 891 # The in6_pktinfo struct.
 892 grep '^type _in6_pktinfo ' gen-sysinfo.go | \
 893     sed -e 's/_in6_pktinfo/Inet6Pktinfo/' \
 894       -e 's/ipi6_addr/Addr/' \
 895       -e 's/ipi6_ifindex/Ifindex/' \
 896       -e 's/_in6_addr/[16]byte/' \
 897     >> ${OUT}
 898
 899 # The termios struct.
 900 grep '^type _termios ' gen-sysinfo.go | \
 901     sed -e 's/_termios/Termios/' \
 902       -e 's/c_iflag/Iflag/' \
 903       -e 's/c_oflag/Oflag/' \
 904       -e 's/c_cflag/Cflag/' \
 905       -e 's/c_lflag/Lflag/' \
 906       -e 's/c_line/Line/' \
 907       -e 's/c_cc/Cc/' \
 908       -e 's/c_ispeed/Ispeed/' \
 909       -e 's/c_ospeed/Ospeed/' \
 910     >> ${OUT}
 911
 912 # The termios constants.
 913 for n in IGNBRK BRKINT IGNPAR PARMRK INPCK ISTRIP INLCR IGNCR ICRNL IUCLC \
 914     IXON IXANY IXOFF IMAXBEL IUTF8 OPOST OLCUC ONLCR OCRNL ONOCR ONLRET \
 915     OFILL OFDEL NLDLY NL0 NL1 CRDLY CR0 CR1 CR2 CR3 CS5 CS6 CS7 CS8 TABDLY \
 916     BSDLY VTDLY FFDLY CBAUD CBAUDEX CSIZE CSTOPB CREAD PARENB PARODD HUPCL \
 917     CLOCAL LOBLK CIBAUD CMSPAR CRTSCTS ISIG ICANON XCASE ECHO ECHOE ECHOK \
 918     ECHONL ECHOCTL ECHOPRT ECHOKE DEFECHO FLUSHO NOFLSH TOSTOP PENDIN IEXTEN \
 919     VINTR VQUIT VERASE VKILL VEOF VMIN VEOL VTIME VEOL2 VSWTCH VSTART VSTOP \
 920     VSUSP VDSUSP VLNEXT VWERASE VREPRINT VDISCARD VSTATUS TCSANOW TCSADRAIN \
 921     TCSAFLUSH TCIFLUSH TCOFLUSH TCIOFLUSH TCOOFF TCOON TCIOFF TCION B0 B50 \
 922     B75 B110 B134 B150 B200 B300 B600 B1200 B1800 B2400 B4800 B9600 B19200 \
 923     B38400 B57600 B115200 B230400 B460800 B500000 B576000 B921600 B1000000 \
 924     B1152000 B1500000 B2000000 B2500000 B3000000 B3500000 B4000000; do
 925
 926     grep "^const _$n " gen-sysinfo.go | \
 927         sed -e 's/^\(const \)_\([^=]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 928 done
 929
 930 # The mount flags
 931 grep '^const _MNT_' gen-sysinfo.go |
 932     sed -e 's/^\(const \)_\(MNT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 933 grep '^const _MS_' gen-sysinfo.go |
 934     sed -e 's/^\(const \)_\(MS_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 935
 936 # The fallocate flags.
 937 grep '^const _FALLOC_' gen-sysinfo.go |
 938     sed -e 's/^\(const \)_\(FALLOC_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 939
 940 # The statfs struct.
 941 # Prefer largefile variant if available.
 942 statfs=`grep '^type _statfs64 ' gen-sysinfo.go || true`
 943 if test "$statfs" != ""; then
 944   grep '^type _statfs64 ' gen-sysinfo.go
 945 else
 946   grep '^type _statfs ' gen-sysinfo.go
 947 fi | sed -e 's/type _statfs64/type Statfs_t/' \
 948          -e 's/type _statfs/type Statfs_t/' \
 949          -e 's/f_type/Type/' \
 950          -e 's/f_bsize/Bsize/' \
 951          -e 's/f_blocks/Blocks/' \
 952          -e 's/f_bfree/Bfree/' \
 953          -e 's/f_bavail/Bavail/' \
 954          -e 's/f_files/Files/' \
 955          -e 's/f_ffree/Ffree/' \
 956          -e 's/f_fsid/Fsid/' \
 957          -e 's/f_namelen/Namelen/' \
 958          -e 's/f_frsize/Frsize/' \
 959          -e 's/f_flags/Flags/' \
 960          -e 's/f_spare/Spare/' \
 961     >> ${OUT}
 962
 963 # The timex struct.
 964 timex=`grep '^type _timex ' gen-sysinfo.go || true`
 965 if test "$timex" = ""; then
 966   timex=`grep '^// type _timex ' gen-sysinfo.go || true`
 967   if test "$timex" != ""; then
 968     timex=`echo $timex | sed -e 's|// ||' -e 's/INVALID-bit-field/int32/g'`
 969   fi
 970 fi
 971 if test "$timex" != ""; then
 972   echo "$timex" | \
 973     sed -e 's/_timex/Timex/' \
 974       -e 's/modes/Modes/' \
 975       -e 's/offset/Offset/' \
 976       -e 's/freq/Freq/' \
 977       -e 's/maxerror/Maxerror/' \
 978       -e 's/esterror/Esterror/' \
 979       -e 's/status/Status/' \
 980       -e 's/constant/Constant/' \
 981       -e 's/precision/Precision/' \
 982       -e 's/tolerance/Tolerance/' \
 983       -e 's/ time / Time /' \
 984       -e 's/tick/Tick/' \
 985       -e 's/ppsfreq/Ppsfreq/' \
 986       -e 's/jitter/Jitter/' \
 987       -e 's/shift/Shift/' \
 988       -e 's/stabil/Stabil/' \
 989       -e 's/jitcnt/Jitcnt/' \
 990       -e 's/calcnt/Calcnt/' \
 991       -e 's/errcnt/Errcnt/' \
 992       -e 's/stbcnt/Stbcnt/' \
 993       -e 's/tai/Tai/' \
 994       -e 's/_timeval/Timeval/' \
 995     >> ${OUT}
 996 fi
 997
 998 # The rlimit struct.
 999 grep '^type _rlimit ' gen-sysinfo.go | \
1000     sed -e 's/_rlimit/Rlimit/' \
1001       -e 's/rlim_cur/Cur/' \
1002       -e 's/rlim_max/Max/' \
1003     >> ${OUT}
1004
1005 # The RLIMIT constants.
1006 grep '^const _RLIMIT_' gen-sysinfo.go |
1007     sed -e 's/^\(const \)_\(RLIMIT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1008 grep '^const _RLIM_' gen-sysinfo.go |
1009     sed -e 's/^\(const \)_\(RLIM_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1010
1011 # The sysinfo struct.
1012 grep '^type _sysinfo ' gen-sysinfo.go | \
1013     sed -e 's/_sysinfo/Sysinfo_t/' \
1014       -e 's/uptime/Uptime/' \
1015       -e 's/loads/Loads/' \
1016       -e 's/totalram/Totalram/' \
1017       -e 's/freeram/Freeram/' \
1018       -e 's/sharedram/Sharedram/' \
1019       -e 's/bufferram/Bufferram/' \
1020       -e 's/totalswap/Totalswap/' \
1021       -e 's/freeswap/Freeswap/' \
1022       -e 's/procs/Procs/' \
1023       -e 's/totalhigh/Totalhigh/' \
1024       -e 's/freehigh/Freehigh/' \
1025       -e 's/mem_unit/Unit/' \
1026     >> ${OUT}
1027
1028 # The ustat struct.
1029 grep '^type _ustat ' gen-sysinfo.go | \
1030     sed -e 's/_ustat/Ustat_t/' \
1031       -e 's/f_tfree/Tfree/' \
1032       -e 's/f_tinode/Tinoe/' \
1033       -e 's/f_fname/Fname/' \
1034       -e 's/f_fpack/Fpack/' \
1035     >> ${OUT}
1036 # Force it to be defined, as on some older GNU/Linux systems the
1037 # header file fails when using with <linux/filter.h>.
1038 if ! grep 'type _ustat ' gen-sysinfo.go >/dev/null 2>&1; then
1039   echo 'type Ustat_t struct { Tfree int32; Tinoe uint64; Fname [5+1]int8; Fpack [5+1]int8; }' >> ${OUT}
1040 fi
1041
1042 # The utimbuf struct.
1043 grep '^type _utimbuf ' gen-sysinfo.go | \
1044     sed -e 's/_utimbuf/Utimbuf/' \
1045       -e 's/actime/Actime/' \
1046       -e 's/modtime/Modtime/' \
1047     >> ${OUT}
1048
1049 # The LOCK flags for flock.
1050 grep '^const _LOCK_' gen-sysinfo.go |
1051     sed -e 's/^\(const \)_\(LOCK_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1052
1053 # The PRIO constants.
1054 grep '^const _PRIO_' gen-sysinfo.go | \
1055   sed -e 's/^\(const \)_\(PRIO_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1056
1057 # The GNU/Linux LINUX_REBOOT flags.
1058 grep '^const _LINUX_REBOOT_' gen-sysinfo.go |
1059     sed -e 's/^\(const \)_\(LINUX_REBOOT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1060
1061 # The GNU/Linux sock_filter struct.
1062 grep '^type _sock_filter ' gen-sysinfo.go | \
1063     sed -e 's/_sock_filter/SockFilter/' \
1064       -e 's/code/Code/' \
1065       -e 's/jt/Jt/' \
1066       -e 's/jf/Jf/' \
1067       -e 's/k /K /' \
1068     >> ${OUT}
1069
1070 # The GNU/Linux sock_fprog struct.
1071 grep '^type _sock_fprog ' gen-sysinfo.go | \
1072     sed -e 's/_sock_fprog/SockFprog/' \
1073       -e 's/len/Len/' \
1074       -e 's/filter/Filter/' \
1075       -e 's/_sock_filter/SockFilter/' \
1076     >> ${OUT}
1077
1078 # The GNU/Linux filter flags.
1079 grep '^const _BPF_' gen-sysinfo.go | \
1080   sed -e 's/^\(const \)_\(BPF_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1081
1082 # The GNU/Linux nlattr struct.
1083 grep '^type _nlattr ' gen-sysinfo.go | \
1084     sed -e 's/_nlattr/NlAttr/' \
1085       -e 's/nla_len/Len/' \
1086       -e 's/nla_type/Type/' \
1087     >> ${OUT}
1088
1089 # The GNU/Linux nlmsgerr struct.
1090 grep '^type _nlmsgerr ' gen-sysinfo.go | \
1091     sed -e 's/_nlmsgerr/NlMsgerr/' \
1092       -e 's/error/Error/' \
1093       -e 's/msg/Msg/' \
1094       -e 's/_nlmsghdr/NlMsghdr/' \
1095     >> ${OUT}
1096
1097 # The GNU/Linux rtnexthop struct.
1098 grep '^type _rtnexthop ' gen-sysinfo.go | \
1099     sed -e 's/_rtnexthop/RtNexthop/' \
1100       -e 's/rtnh_len/Len/' \
1101       -e 's/rtnh_flags/Flags/' \
1102       -e 's/rtnh_hops/Hops/' \
1103       -e 's/rtnh_ifindex/Ifindex/' \
1104     >> ${OUT}
1105
1106 # The GNU/Linux netlink flags.
1107 grep '^const _NETLINK_' gen-sysinfo.go | \
1108   sed -e 's/^\(const \)_\(NETLINK_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1109 grep '^const _NLA_' gen-sysinfo.go | \
1110   sed -e 's/^\(const \)_\(NLA_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1111
1112 # The GNU/Linux packet socket flags.
1113 grep '^const _PACKET_' gen-sysinfo.go | \
1114   sed -e 's/^\(const \)_\(PACKET_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1115
1116 # The GNU/Linux inotify_event struct.
1117 grep '^type _inotify_event ' gen-sysinfo.go | \
1118     sed -e 's/_inotify_event/InotifyEvent/' \
1119       -e 's/wd/Wd/' \
1120       -e 's/mask/Mask/' \
1121       -e 's/cookie/Cookie/' \
1122       -e 's/len/Len/' \
1123       -e 's/name/Name/' \
1124       -e 's/\[\]/[0]/' \
1125       -e 's/\[0\]byte/[0]int8/' \
1126     >> ${OUT}
1127
1128 # The Solaris 11 Update 1 _zone_net_addr_t struct.
1129 grep '^type _zone_net_addr_t ' gen-sysinfo.go | \
1130     sed -e 's/_in6_addr/[16]byte/' \
1131     >> ${OUT}
1132
1133 # Struct sizes.
1134 set cmsghdr Cmsghdr ip_mreq IPMreq ip_mreqn IPMreqn ipv6_mreq IPv6Mreq \
1135     ifaddrmsg IfAddrmsg ifinfomsg IfInfomsg in_pktinfo Inet4Pktinfo \
1136     in6_pktinfo Inet6Pktinfo inotify_event InotifyEvent linger Linger \
1137     msghdr Msghdr nlattr NlAttr nlmsgerr NlMsgerr nlmsghdr NlMsghdr \
1138     rtattr RtAttr rtgenmsg RtGenmsg rtmsg RtMsg rtnexthop RtNexthop \
1139     sock_filter SockFilter sock_fprog SockFprog ucred Ucred \
1140     icmp6_filter ICMPv6Filter
1141 while test $# != 0; do
1142     nc=$1
1143     ngo=$2
1144     shift
1145     shift
1146     if grep "^const _sizeof_$nc =" gen-sysinfo.go >/dev/null 2>&1; then
1147         echo "const Sizeof$ngo = _sizeof_$nc" >> ${OUT}
1148     fi
1149 done
1150
1151 # In order to compile the net package, we need some sizes to exist
1152 # even if the types do not.
1153 if ! grep 'const SizeofIPMreq ' ${OUT} >/dev/null 2>&1; then
1154     echo 'const SizeofIPMreq = 8' >> ${OUT}
1155 fi
1156 if ! grep 'const SizeofIPv6Mreq ' ${OUT} >/dev/null 2>&1; then
1157     echo 'const SizeofIPv6Mreq = 20' >> ${OUT}
1158 fi
1159 if ! grep 'const SizeofIPMreqn ' ${OUT} >/dev/null 2>&1; then
1160     echo 'const SizeofIPMreqn = 12' >> ${OUT}
1161 fi
1162 if ! grep 'const SizeofICMPv6Filter ' ${OUT} >/dev/null 2>&1; then
1163     echo 'const SizeofICMPv6Filter = 32' >> ${OUT}
1164 fi
1165
1166 exit $?